In 1974, a BBC reporter named Martin Young hit the road with Jimmy Savile while covering one of the eccentric British broadcasting star's famous charity runs. Savile was a major celebrity in the U.K., and fans would often surround his camper van when he passed through a town. Among the crowds were usually young girls. "Jimmy could have who he wanted," Young recalled on BBC television's Panorama on Oct. 22. So when Young walked in on Savile lying in the bed of his camper van with a teenage girl, Young said he didn't report it to anyone simply because "it never...